help sought - securing a terminal/line

[Guy Harris]

>Fear not; the V.4 init still understands inittab.  All Guy was
>referring to was the advent of ttymon, a STREAMS-based tty port
>monitor that provides a more convenient way to deal with terminals
>than the old inittab method.

And also gives you a few additional bells and whistles, such as
autobauding (not the bit where you hit BREAK to get it to cycle through
speeds, although "ttymon" does support that, but the bit where you type
a character and, based on what the character looked like, "ttymon"
guesses the speed of the line; same sort of thing as the 4.[23]BSD "getty"
supports).  It does permit you to run some program other than "login"
on some port when it comes up.